Driving-gear for speedometers.



A. W. WESSOLEGK DRI'VING GEAR FOR SPEBDOMBTERS.

APPLICATION FILED NOV. 14, 1912.

1,067,700. Patented July 15, 1913.

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AUGUSTUS W. WESSOLECK, OF NEW BRITAIN, OCNNECTICUT, ASSIGNOR. TO THEAMERICAN HARDWARE CORPORATION, OF NEW BRITAIN, CONNECTICUT, A

CORPORATION OF CONNECTICUT.

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Specification of Letters YB/cent.

lattanted July 15,1913.

T 0 cl? whom it may concern:

Be it known that I, AUGUSTUS and State of Connecticut, have inventedcertain new and useful Improvements in 'Driving-Gear for Speedometers,of which the following is a full, clear, and exact description.

My invention relates to an improved driving gear for odometers orspeedometers, for iltsle in connection with motor bicycles and the As iswell known, the wheels of a motor bicycle are carried between forks of amain supporting frame and are not easily removed. A gear as heretoforeconstructed cannot be attached thereto without separating the wheel fromthe frame, and accordingly it is the object of my invention to provide asimple and effective gear construction which may be readily applied toeither wheel of a motor bicycle without disturbing the latter in theslightest. Ordinarily in motor bicycles, it is customary to drive aspeedometer or cyclometer by the driving wheel instead of by thesteering wheel. Since the driving wheel can only be removed bydisturbing several carefully predetermined. adjustinents, the importanceand advantages of providing a gear which may be simply and quicklyattached without disturbing the wheel in the slightest is very apparent.

In the drawings: Figure 1 represents an outside elevation of the drivingwheel of a motor bicycle detached and with my gear aflixed thereto. Fig.2. is a relatively onlarged side elevation of my improved gear,

' viewed from the outside. Fig. 3 is a. similar view of the inside.Figs. 4, 5 and 6 are relatively enlarged detailed views, mainly insection.

The gear proper comprises a ring made up of at least two separablesegmental sections 1 and 2, which sections when connected together makea complete gear. These sections are separated at suitable points, theline of each separation preferably occurring at the.

bottom of. a notch between two adjacent teeth. 3'-5 are coupling blocksor bridging devices by which the ad'acent ends of the gear sections maybe connected. Each of these blocks 3 is provided with a centering pin 4W. lVnsso LECK. a citizen of the United States, residing at New Britain,in the county of Hartford and each end of each section is respectivelvprovided on the inner face of the gear sections with a semicircularnotch arranged to snugly receive one-half of its centering pin.

55 are fastening screws by whichthe coupling member 3 may be connectedto the gear sections.12. Suitable clips 6 may be attached to attach thegear sections to the spokes 77 of the wheel. In this particularinstance, the clips 6 are controlled by cla1nping screws 8 which passthrough the gear sections and by which means the clips aresecurelyclamped to the spokes 7-7. The inner face of the gear sections isbeveled back as indicated at 10 to approximately conform to the inclineof the spokes 7 and so as to give a proper. bearing. lVhen it is desiredto apply a gear to the wheel the two sections 1-2 are opened orseparated and brought togethcr'between the bicycle frame and the outsideof the bicycle wheel. The coupling members 38 are then successivelyapplied, the screws 5 being employed to connect the coupling member 3to'the two adjacent ends of said sections. The function of the centeringpin 4: is to accurately po-- sition the adjacent ends of the gearsections so that the gear teeth thereon will mesh properly with theother gear (not shown) to be driven thereby.

When the parts are assembled and the screws 5-5 are set up tightly, thegear sections are rigidly held in operative position and may then beapplied to the spokes 7. This application may be easily and quicklyeffected by means of the clips 6 and the cooperating clamping screws 8aforesaid. The application of the gear to such a wheel may be easily andquickly eifected and although the gear is made up of separate sections,all of said sections are bound to be united properly for cooperationwith the pinion to be 1. A gear of the character described, c'our risimat least two so arate sections, cou- P z:

' pling devices for securing together the ends of said sections Withmeans for centering the connected ends to properly position the gearteeth thereon respectively, said centeringmeans being carried by saidcoupling means.

2. A gear of thecheracter described, comprising at least two separatesections, coupling devices for securing together the ends of saidsections with means for centering the connected ends to properlyposition the gear teeth thereon respectively, and means for coupling theassembled gear to a Wheel element.

3. A gear of the character described, comprising at least two separatesect-ions, C011- 1 plingdei'ices forsecuring together the ends j of saidsections With means for centering Q the connected ends to properlyposition the l gear teeth thereon respectively, said centerin'g meansbeing carried by said coupling l means, and means carried by said gearfor coupling the assembled sections thereof to the spoke of aWheelelement.

' AUGUSTUS 'W. WESSOLECK. Witnesses:

JOHN HLRBERT ANNEAR, HERBERT BROWNE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, L. G.

